A team of researchers from the University of Strathclyde, Clyde Porpoise CIC and CESIMAR–CCT CENPAT-CONICET, has found evidence of a lone dolphin attempting to communicate with porpoises. In their paper published in the journal Bioacoustics, the group describes audio recordings of a dolphin living among porpoises in the Firth of Clyde and what they believe to be its attempts at communication.
